package indi.luckly.exception;

import indi.luckly.common.ApiException;

import indi.luckly.common.key.ErrorKey;
import indi.luckly.common.response.ResponseResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;


@ControllerAdvice
public class GlobalExceptionHandler {



    private static final Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    /**
     * 处理自定义的业务异常
     *
     * @param req
     * @param e
     * @return
     */
    @ExceptionHandler(value = ApiException.class)
    @ResponseBody
    public ResponseResult bizExceptionHandler(HttpServletRequest req, ApiException e) {
        logger.error("发生空指针异常！原因是:",e);
        return ResponseResult.fail(e);
    }

    /**
     * 处理空指针的异常
     *
     * @param req
     * @param e
     * @return
     */
    @ExceptionHandler(value = NullPointerException.class)
    @ResponseBody
    public ResponseResult exceptionHandler(HttpServletRequest req, NullPointerException e) {
        logger.error("发生空指针异常！原因是:", e);
        return ResponseResult.fail(ErrorKey.UNKNOWN);
    }


    /**
     * 处理其他异常
     *
     * @param req
     * @param e
     * @return
     */
    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public ResponseResult exceptionHandler(HttpServletRequest req, Exception e) {
        logger.error("未知异常！原因是:", e);
        return ResponseResult.fail(ErrorKey.UNKNOWN);
    }
}
